Optimizing the noise performance of broad-band WDM systems with distributed Raman amplification

We derive the fundamental limit for the ratio of path-averaged signal power to optical signal-to-noise ratio (OSNR), and show that for a fixed nonlinear weight, the OSNR is maximized if the signal power variation along the fiber is minimal. We also derive the conditions under which the noise perform...

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Veröffentlicht in:	IEEE photonics technology letters 2002-08, Vol.14 (8), p.1199-1201
Hauptverfasser:	Perlin, V.E., Winful, H.G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplification Amplifiers Erbium-doped fiber amplifier Noise Noise figure Nonlinearity Optical attenuators Optical fiber polarization Optical fibers Optical noise Optimization Raman scattering Signal to noise ratio Stimulated emission Wavelength division multiplexing
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Zusammenfassung:	We derive the fundamental limit for the ratio of path-averaged signal power to optical signal-to-noise ratio (OSNR), and show that for a fixed nonlinear weight, the OSNR is maximized if the signal power variation along the fiber is minimal. We also derive the conditions under which the noise performance of Raman amplification can be improved by erbium-doped fiber amplifier post amplification.
ISSN:	1041-1135 1941-0174
DOI:	10.1109/LPT.2002.1022017